A deeper understanding of the ambient aerosols in the Lower Fraser Valley and its policy implications: The 2nd special issue on Pacific 2001 Air Quality Study

2006 ◽  
Vol 40 (15) ◽  
pp. 2635-2636 ◽  
Author(s):  
Shao-Meng Li
Keyword(s):  
Air Quality ◽  
Policy Implications ◽  
Special Issue ◽  
Ambient Aerosols ◽  
Lower Fraser Valley ◽  
Quality Study ◽  
Fraser Valley

Characterizations of cis-pinonic acid and n-fatty acids on fine aerosols in the Lower Fraser Valley during Pacific 2001 Air Quality Study

2004 ◽  
Vol 38 (34) ◽  
pp. 5789-5800 ◽  
Author(s):  
Yu Cheng ◽  
Shao-Meng Li ◽  
Amy Leithead ◽  
Peter C. Brickell ◽  
W. Richard Leaitch
Keyword(s):  
Fatty Acids ◽  
Air Quality ◽  
Lower Fraser Valley ◽  
Quality Study ◽  
Fraser Valley

Introduction to the special issue on Pacific 2001 Air Quality Study

2004 ◽  
Vol 38 (34) ◽  
pp. 5717 ◽  
Author(s):  
Bruce Thomson ◽  
Shao-Meng Li ◽  
Wayne Belzer
Keyword(s):  
Air Quality ◽  
Special Issue ◽  
Quality Study

scholarly journals Evaluation of an air quality simulation of the Lower Fraser Valley-II. Photochemistry

1997 ◽  
Vol 31 (11) ◽  
pp. 1617-1630 ◽  
Author(s):  
Mark Hedley ◽  
R. McLaren ◽  
Weimin Jiang ◽  
D.L. Singleton
Keyword(s):  
Air Quality ◽  
Lower Fraser Valley ◽  
Fraser Valley

scholarly journals Kinetics and impacting factors of HO<sub>2</sub> uptake onto submicron atmospheric aerosols during a 2019 air quality study (AQUAS) in Yokohama, Japan

2021 ◽  
Author(s):  
Jun Zhou ◽  
Kei Sato ◽  
Yu Bai ◽  
Yukiko Fukusaki ◽  
Yuka Kousa ◽  
...  
Keyword(s):  
Air Quality ◽  
Transition Metal ◽  
Active Sites ◽  
Peroxy Radical ◽  
Analytical Techniques ◽  
Transition Metal Ions ◽  
Tropospheric Chemistry ◽  
Chemical Components ◽  
Ambient Aerosols ◽  
Quality Study

Abstract. HO2 uptake kinetics onto ambient aerosols play pivotal roles in tropospheric chemistry but are not fully understood. Field measurements of aerosol chemical and physical properties should be linked to molecular level kinetics; however, given that the HO2 reactivity of ambient aerosols is low, traditional analytical techniques are unable to achieve this goal. We developed an online approach to precisely investigate (i) the HO2 reactivity of ambient gases and aerosols and (ii) HO2 uptake coefficients onto ambient aerosols (ɣ) during 2019 air quality study (AQUAS) in Yokohama, Japan. We identified the effects of individual chemical components of ambient aerosols on ɣ. The results verified in laboratory studies on individual chemical components: transition metals play a key role in HO2 uptake processes and chemical components indirectly influence such processes (i.e., through altering aerosol surface properties or providing active sites), with smaller particles tending to yield higher ɣ values than larger particles owing to the limitation of gas phase diffusion is smaller with micrometer particles and the distribution of depleting species such as transition metal ions is mostly distributed in accumulation mode of aerosol. The modeling of ɣ utilized transition metal chemistry derived by previous studies, further confirming our conclusion. However, owing to the high NO concentrations in Yokohama, peroxy radical loss onto submicron aerosols has a negligible impact on O3 production rate and sensitivity regime.

Black carbon in the Lower Fraser Valley, British Columbia: Impact of 2017 wildfires on local air quality and aerosol optical properties

2019 ◽  
Vol 217 ◽  
pp. 116976 ◽  
Author(s):  
Robert M. Healy ◽  
Jonathan M. Wang ◽  
Uwayemi Sofowote ◽  
Yushan Su ◽  
Jerzy Debosz ◽  
...  
Keyword(s):  
British Columbia ◽  
Optical Properties ◽  
Air Quality ◽  
Black Carbon ◽  
Aerosol Optical Properties ◽  
Lower Fraser Valley ◽  
Fraser Valley
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